EP1262005B1 - Three-phase high voltage switchgear with single-phase-encapsulated modules - Google Patents

Three-phase high voltage switchgear with single-phase-encapsulated modules Download PDF

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Publication number
EP1262005B1
EP1262005B1 EP01915016A EP01915016A EP1262005B1 EP 1262005 B1 EP1262005 B1 EP 1262005B1 EP 01915016 A EP01915016 A EP 01915016A EP 01915016 A EP01915016 A EP 01915016A EP 1262005 B1 EP1262005 B1 EP 1262005B1
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EP
European Patent Office
Prior art keywords
phase conductor
housing
conductor sections
phase
installation according
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EP01915016A
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German (de)
French (fr)
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EP1262005A1 (en
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Manfred Meinherz
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0352—Gas-insulated switchgear for three phase switchgear

Definitions

  • the invention is in the field of power distribution and is applied in the technical design of encapsulated, gas-insulated high-voltage switchgear having single-phase encapsulated modules such as circuit breakers with disconnectors and earthing switches and electrically conductive connectors and arranged in which three circuit breakers in parallel side by side and on encapsulated equipment parts with the connected across the circuit breakers current-conducting connectors are connected.
  • single-phase encapsulated modules such as circuit breakers with disconnectors and earthing switches and electrically conductive connectors and arranged in which three circuit breakers in parallel side by side and on encapsulated equipment parts with the connected across the circuit breakers current-conducting connectors are connected.
  • the power connections of the horizontally arranged circuit breaker are led out vertically from the circuit breakers and encapsulated plant parts such as disconnectors and / or earthing, current transformers or other connection modules and / or encapsulated phase conductor sections to a transverse to the circuit breakers three-phase , single-phase encapsulated busbar connected.
  • the circuit breaker or the circuit-breaker associated system components are provided at the junctions in the usual way, each with a connecting flange, which has a central axis due to its circular design.
  • the corresponding central axes of three circuit-breaker units are in a common plane (ABBtechnik 6/91, page 8).
  • the housing consists of a tubular shell part and two disc-shaped side parts and in which the phase conductor sections and the branches of solid-material discharges end, which are mounted on the side parts and the shell part of the housing ( DD 295 431 A5 ).
  • a building block For the deflection of the phase conductors of a three-phase encapsulated gas-insulated high-voltage line by 90 °, a building block is otherwise known which has a ball-shaped designed with two connecting flanges housing, which three receiving arcuately shaped conductor parts, wherein each conductor part is supported via an insulator on the housing.
  • the current paths of the three conductor parts are arranged in a triangle ( US 4 059 723 A ).
  • phase conductors In order to reduce the height of enclosed switchgear at branch points of three-phase encapsulated busbars, it is also known to arrange the phase conductors side by side in a plane, the three phase conductors extend in sub-cylinders of the enclosure and these sub-cylinders are connected by opposite and mutually concave walls , In the branch region, two busbars crossing each other in superimposed planes are connected to each other by a vertically extending transition section ( DE 36 02 875 A1 ).
  • the invention has the object, the transition from the circuit breakers on the current-conducting connectors in such a way that both this transition and the switchgear as a whole as little space, especially height, but also space required and yet easily accessible for maintenance.
  • a one-piece connection module for receiving the phase conductor sections a one-piece connection module is arranged, which is provided with at least two connection areas, each with three juxtaposed, each having a central axis connecting flanges;
  • both the center axes of the connecting flanges of the connecting block and the center axes of the connecting flanges of the current-conducting connecting pieces in the same plane as the center axes of the connection flanges of the circuit breaker.
  • Such an embodiment of the switchgear therefore provides for the transition from the three single-phase encapsulated circuit breakers to use the three single-phase encapsulated current-conducting connectors a single block in which the axes of all terminal areas lie in a common plane.
  • This has the consequence that the current-conducting connecting pieces need not be arranged offset to a vertical or horizontal plane, whereby the space requirement of the system is reduced.
  • the use of a single component instead of the previously customary multiple components saves unit and assembly costs.
  • a switchgear with - usually - horizontally arranged circuit breakers at the same time reduces the height of the system and thus facilitates accessibility to parts of the system. Due to the compact design of the connection block and the footprint of the system is reduced.
  • the housings of the respective three circuit breakers arranged parallel to one another are formed as a one-piece block housing ( DE 8 907 711 U . DE 29806651.3 U ). - In the event that such circuit breakers are used with frontal power connections, all components of the system can be arranged in a common horizontal plane.
  • the new connector block may be formed as a flat housing having the character of a 90 ° sector of a circular disc, wherein in the housing three phase conductor sections are arranged, which are designed quarter-circle annular and concentric with each other.
  • the housing is expediently designed so that each phase conductor section is encapsulated for itself and supported on the housing via at least one support insulator.
  • the new connection module is to serve for the connection of more than two modules, then in a further embodiment of the invention it is expedient to form a flat cuboid housing and to arrange intersecting phase conductor sections in this housing; In this case, the phase conductor sections are to be arranged in a common encapsulation space, wherein they are supported on the housing insulating. - If this case forms the connection block as T-block, so provides the flat, cuboid housing on three side surfaces with connecting flanges, then assigns in the encapsulation three expediently from one side surface to the opposite side surface extending phase conductor sections and three of these phase conductor sections to the third side surface branching phase conductor sections at.
  • the new connection module can also be designed as a so-called cross-block, in which the flat, cuboid housing is provided on all four side surfaces with connecting flanges; In this case, it is provided in a further embodiment of the invention that in the encapsulation three from one side surface to the opposite side surface extending phase conductor sections and three further, the first-mentioned phase conductor sections crossing phase conductor sections are arranged, in each case a first-mentioned and another phase conductor section are interconnected.
  • the housing of the new connection module is advantageously prepared in a further embodiment as a cast housing.
  • the connecting block as a T or cross-block is obtained by a mechanical stable construction that the inner and outer contours of this cast housing are essentially determined by three parallel cylinders, of three perpendicular thereto, also parallel cylinders to be crossed.
  • the bottom and the top surface of the flat housing in the region of the gusset of the intersecting cylinders are expediently joined together in a material fit.
  • the new connection module can be configured as flat as possible, it is also recommended in the case of a T or cross component that the intersecting phase conductor sections are cranked such that receive in the respective crossing region of a phase conductor section by the same amount above the central axis of the connecting flanges Level runs like the other phase conductor section below this center plane.
  • the insulating support of the phase conductor sections is carried out in a conventional manner with post insulators, which on tabs on the housing wall ( EP 0 540 131 B1 ) or in the region of closable openings in the housing wall ( DE 8 904 007 U , Brown Boverie Mitt. 4-73, p. 142).
  • connection module For connecting two phase conductor sections within the connection module, known conductor connections in the form of hollow spheres ( DE 8 005 594 U ) be used.
  • FIG. 1 shows an open-circuit switchgear, in which in a so-called H-circuit five power switch assemblies 11, 12, 13, 14 and 15 are arranged, wherein the circuit breaker assemblies 11 and 12 and 14 and 15 each have an outdoor connection assembly 16 or 17 or 18 or 19 are assigned to the connection of two overhead lines and two transformer stations.
  • a power converter assembly 20 is arranged between the respective circuit breaker assembly and the associated outdoor connection module.
  • the circuit breaker assemblies are further associated with angle splitter assemblies 21, with which the out of the horizontally arranged circuit breakers led out vertically upward power connections are deflected into the horizontal.
  • connection blocks serve on the one hand to connect two power switch assemblies 11 and 12 or 14 and 15 and to electrically connect these power switch assemblies with the current-conducting connecting pieces 22 and 23 leading to the circuit breaker assembly 13.
  • connection modules 2 and 3 have a flat, cuboidal contour and are provided on three side surfaces, each with three connecting flanges, wherein the center axes of all connecting flanges lie in a common horizontal plane. This has the consequence that even with the modules that are connected to each other with the respective connection module, the central axes of the corresponding connection flanges lie in a common horizontal plane.
  • FIG. 2 shows a horizontal view of a circuit breaker assembly 24, in which the power connections from the respective circuit breaker horizontally, ie the front side via housing blocks 25, which may be current transformer modules, are led out.
  • a deflection module 26 adjoins the current transformer module 25, which at the same time is designed as a connection component for an outdoor bushing 27.
  • a disconnector or isolator earth module 28 is connected to the then a connection module 4 is flanged.
  • the connection module 4 is according to the later explained embodiment according to FIG. 5 or the embodiment according to FIG. 6 educated.
  • FIG. 3 shows in plan view and according to the section line IV in FIG. 4 in cross-section a connecting block 9, which is formed as a flat housing 91, which has the character of a 90 ° sector of a circular disc.
  • the housing 91 thus has two side surfaces arranged at an angle of 90 ° to one another, on which first connecting flanges 92 and second connecting flanges 94 are arranged.
  • the connecting flanges are arranged at the ends of quarter-circle annular pipe bends 98, 99 and 70, which serve as encapsulating for likewise quarter-circular ring-shaped phase conductor sections 71, 72 and 73.
  • the pipe bends 98, 99 and 70 are connected by webs 96 and 97 cohesively.
  • phase conductor sections 71, 72 and 73 are concentric with one another and are supported on the housing 91 within the individual pipe bends by means of support insulators 74.
  • a connection module according to the FIGS. 3 and 4 For example, for a switchgear according to FIG. 2 be used when the circuit breaker unit is to be connected to the one end of a current-conducting connector, which consists of three horizontally juxtaposed single-phase encapsulated pipelines.
  • FIG. 5 shows that in a plant according to FIG. 1 used connection block 2, which is similar to the connection block 3 is formed.
  • the connection module consists of a flat, cuboid housing 60, in which crossing phase conductor sections 64, 65 and 66 and 67, 68 and 69 are arranged.
  • the interior of the housing forms a common for all phase conductor Kapselungsraum.
  • the housing is provided on three side surfaces with connecting flanges 61, 62 and 63, wherein the connecting flanges 61 and 63 are opposite.
  • the center axes A, B and C and A ', B' and C 'of all connection flanges lie in a common horizontal plane.
  • the shape of the housing 60 that is, the inner and the outer contours of this housing, which is a cast housing, essentially three parallel cylinders determined, which are crossed by three perpendicular thereto, also parallel cylinders , These cylinders are concentric with the phase conductor sections.
  • gusset areas 53 of the intersecting cylinders result.
  • the top surface of the housing 60 is integrally connected to the bottom surface of the housing.
  • connection region 50 or 51 or 52 is provided in each case.
  • FIG. 6 shows a connection module 8, which in principle as the connection module according to FIG. 5 is constructed, however, the housing 80 is also provided in addition to the connecting flanges 81, 82 and 83 on the fourth side surface with connecting flanges 84. Accordingly, the transverse phase conductor sections 85, 86 and 87 extend into the region of these connection flanges.
  • FIG. 8 schematically shows the relevant outer contour 89 of the connecting block 8, after which the transverse cylinder areas continue into the flange 84.
  • FIG. 9 shows a sectional view taken along the line IX-IX in FIG. 6 .
  • the support of the phase conductor sections by means of support insulators 88 can be seen.
  • the phase conductor section 87 is bent in such a way and that the phase conductor sections 64 and 65 are cranked such that these phase conductor sections in the intersecting areas on the one hand above, on the other hand below a median plane M, wherein the vertical distances from the center plane equal are chosen large.
  • the median plane M is the same plane in which the center axes of the connecting flanges 81 to 84 lie.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

According to the invention, the circuit breaker modules (11) which are made up of parallel circuit breakers are connected to current-conducting connections running crosswise thereto by a one-piece connecting module (2) wherein the central axes of all of the connecting flanges (22) lie in a common plane. This ensures that the high voltage switchgear (1) with single-phase-encapsulated modules takes up as little space as possible.

Description

Die Erfindung liegt auf dem Gebiet der Energieverteilung und ist bei der anlagentechnischen Gestaltung von gekapselten, gasisolierten Hochspannungsschaltanlagen anzuwenden, die einphasig gekapselte Baugruppen wie Leistungsschalter mit Trenn-und Erdungsschaltern und stromleitende Verbindungsstücke aufweisen und bei denen drei Leistungsschalter parallel nebeneinander angeordnet und über gekapselte Anlagenteile mit den quer zu den Leistungsschaltern verlaufenden stromleitenden Verbindungsstücken verbunden sind.The invention is in the field of power distribution and is applied in the technical design of encapsulated, gas-insulated high-voltage switchgear having single-phase encapsulated modules such as circuit breakers with disconnectors and earthing switches and electrically conductive connectors and arranged in which three circuit breakers in parallel side by side and on encapsulated equipment parts with the connected across the circuit breakers current-conducting connectors are connected.

Bei einer bekannten, als Freiluftanlage gebauten Hochspannungsschaltanlage dieser Art sind die Stromanschlüsse der horizontal angeordneten Leistungsschalter vertikal aus den Leistungsschaltern herausgeführt und über gekapselte Anlagenteile wie Trenner und/oder Erder, Stromwandler oder anderweitige Verbindungsbausteine und/oder gekapselte Phasenleiterabschnitte an eine quer zu den Leistungsschaltern verlaufende dreiphasige, einphasig gekapselte Sammelschiene angeschlossen. Die Leistungsschalter bzw. die den Leistungsschaltern zugeordneten Anlagenteile sind dabei an den Verbindungsstellen in üblicher Weise mit je einem Verbindungsflansch versehen, der aufgrund seiner kreisförmigen Gestaltung eine Mittelachse aufweist. Die entsprechenden Mittelachsen von drei Leistungsschaltereinheiten liegen in einer gemeinsamen Ebene (ABB Technik 6/91, Seite 8).In a known, built as an open-circuit plant high voltage switchgear of this type, the power connections of the horizontally arranged circuit breaker are led out vertically from the circuit breakers and encapsulated plant parts such as disconnectors and / or earthing, current transformers or other connection modules and / or encapsulated phase conductor sections to a transverse to the circuit breakers three-phase , single-phase encapsulated busbar connected. The circuit breaker or the circuit-breaker associated system components are provided at the junctions in the usual way, each with a connecting flange, which has a central axis due to its circular design. The corresponding central axes of three circuit-breaker units are in a common plane (ABB Technik 6/91, page 8).

Für Freiluft-Hochspannungsschaltanlagen ist auch ein Anlagentyp bekannt, bei dem je Phase mehrere Leistungsschalter elektrisch hintereinander geschaltet und räumlich hintereinander oder nebeneinander angeordnet sein können. Die Stromanschlüsse der Leistungsschalter sind dabei axial stirnseitig aus den Schaltergehäusen herausgeführt ( DE 29 29 054 A1 ).For outdoor high-voltage switchgear and a type of plant is known, in which per phase more circuit breakers electrically connected in series and can be spatially arranged one behind the other or next to each other. The power terminals of the circuit breaker are axially out front side of the switch housings led out ( DE 29 29 054 A1 ).

Bei Hochspannungsschaltanlagen mit einphasig gekapselten Schaltfeldern ist es auch üblich, die Sammelschiene dreiphasig gekapselt auszugestalten. Für den Übergang von drei nebeneinander angeordneten Leistungsschaltern auf eine quer dazu verlaufende dreiphasig gekapselte Sammelschiene ist ein rohrförmiger Kapselungsbaustein bekannt, der drei in Achsrichtung des Kapselungsgehäuses verlaufende Phasenleiterabschnitte aufweist, die über Stützisolatoren an der Wand des Kapselungsgehäuses abgestützt sind. Jeder Phasenleiterabschnitt ist mit einem Abzweig versehen, wobei diese Abzweige in Achsrichtung des Kapselungsgehäuses längs einer Mantellinie hintereinander angeordnet sind. Zum Anschluss der Abzweige an die Leistungsschalter sind entsprechende Anschlussflansche vorgesehen, wobei die Mittelachsen dieser Anschlussflansche in einer gemeinsamen Ebene liegen ( EP 0 540 131 B1 ).In high-voltage switchgear with single-phase encapsulated panels, it is also common to design the busbar encapsulated three-phase. For the transition of three juxtaposed circuit breakers on a transversely extending three-phase encapsulated busbar a tubular Kapselungsbaustein is known which has three extending in the axial direction of the encapsulating housing phase conductor sections, which are supported via support insulators on the wall of the encapsulating. Each phase conductor section is provided with a branch, wherein these branches are arranged in the axial direction of the encapsulating housing along a surface line one behind the other. For connection of the branches to the circuit breaker corresponding connection flanges are provided, wherein the center axes of these connection flanges lie in a common plane ( EP 0 540 131 B1 ).

Für eine dreiphasig gekapselte Sammelschiene einer Hochspannungsschaltanlage sind weiterhin Kapselungsbausteine bekannt, deren Gehäuse aus einem rohrförmigen Mantelteil und zwei scheibenförmigen Seitenteilen besteht und bei denen die Phasenleiterabschnitte und die Abzweige an feststoffisolierten Ausleitungen enden, die auf die Seitenteile und das Mantelteil des Gehäuses aufgesetzt sind ( DD 295 431 A5 ).For a three-phase encapsulated busbar of a high-voltage switchgear capsule modules are also known, the housing consists of a tubular shell part and two disc-shaped side parts and in which the phase conductor sections and the branches of solid-material discharges end, which are mounted on the side parts and the shell part of the housing ( DD 295 431 A5 ).

Zur Umlenkung der Phasenleiter einer dreiphasig gekapselten gasisolierten Hochspannungsleitung um 90° ist im übrigen ein baustein bekannt, der ein kugelartig gestaltetes mit zwei Anschlussflanschen versehenes Gehäuse aufweist, welches drei ellbogenartig geformte Leiterteile aufnimmt, wobei jedes Leiterteil über einen Isolator am Gehäuse abgestützt ist. Die Strompfade der drei Leiterteile sind dabei im Dreieck angeordnet ( US 4 059 723 A ).For the deflection of the phase conductors of a three-phase encapsulated gas-insulated high-voltage line by 90 °, a building block is otherwise known which has a ball-shaped designed with two connecting flanges housing, which three receiving arcuately shaped conductor parts, wherein each conductor part is supported via an insulator on the housing. The current paths of the three conductor parts are arranged in a triangle ( US 4 059 723 A ).

Um bei gekapselten Schaltanlagen an Abzweigstellen von dreiphasig gekapselten Sammelschienen die Bauhöhe zu verringern, ist es weiterhin bekannt, die Phasenleiter nebeneinander in einer Ebene anzuordnen, wobei die drei Phasenleiter in Teilzylindern der Kapselung verlaufen und diese Teilzylinder durch gegenüberliegende und zueinander konkav verlaufende Wandungen miteinander verbunden sind. Im Abzweigbereich sind zwei sich in übereinander angeordneten Ebenen kreuzende Sammelschienen durch einen vertikal verlaufenden Übergangsabschnitt miteinander verbunden ( DE 36 02 875 A1 ).In order to reduce the height of enclosed switchgear at branch points of three-phase encapsulated busbars, it is also known to arrange the phase conductors side by side in a plane, the three phase conductors extend in sub-cylinders of the enclosure and these sub-cylinders are connected by opposite and mutually concave walls , In the branch region, two busbars crossing each other in superimposed planes are connected to each other by a vertically extending transition section ( DE 36 02 875 A1 ).

Ausgehend von einer dreiphasigen Hochspannungsschaltanlage mit den Merkmalen des Oberbegriffes des Patentanspruches 1 liegt der Erfindung die Aufgabe zugrunde, den Übergang von den Leistungsschaltern auf die stromleitenden Verbindungsstücke so auszugestalten, dass sowohl dieser Übergang als auch die Schaltanlage als Ganzes möglichst wenig Raum, insbesondere Bauhöhe, aber auch Stellfläche benötigt und für Wartungsarbeiten dennoch leicht zugänglich ist.Starting from a three-phase high-voltage switchgear with the features of the preamble of claim 1, the invention has the object, the transition from the circuit breakers on the current-conducting connectors in such a way that both this transition and the switchgear as a whole as little space, especially height, but also space required and yet easily accessible for maintenance.

Zur Lösung dieser Aufgabe ist gemäß der Erfindung vorgesehen, dass zur Aufnahme der Phasenleiterabschnitte ein einstückiger Verbindungsbaustein angeordnet ist, der mit wenigstens zwei Anschlussbereichen mit jeweils drei nebeneinander angeordneten, jeweils eine Mittelachse aufweisenden Anschlussflanschen versehen ist; dabei liegen sowohl die Mittelachsen der Anschlussflansche des Verbindungsbausteines als auch die Mittelachsen der Anschlussflansche der stromleitenden Verbindungsstücke in der gleichen Ebene wie die Mittelachsen der Anschlussflansche der Leistungsschalter.To achieve this object, it is provided according to the invention that for receiving the phase conductor sections a one-piece connection module is arranged, which is provided with at least two connection areas, each with three juxtaposed, each having a central axis connecting flanges; In this case, both the center axes of the connecting flanges of the connecting block and the center axes of the connecting flanges of the current-conducting connecting pieces in the same plane as the center axes of the connection flanges of the circuit breaker.

Eine derartige Ausgestaltung der Schaltanlage sieht also vor, für den Übergang von den drei einphasig gekapselten Leistungsschaltern auf die drei ebenfalls einphasig gekapselten stromleitenden Verbindungsstücke einen einzigen Baustein zu verwenden, bei dem die Achsen aller Anschlussbereiche in einer gemeinsamen Ebene liegen. Dies hat zur Folge, dass die stromleitenden Verbindungsstücke nicht versetzt zu einer vertikalen oder horizontalen Ebene angeordnet werden müssen, wodurch sich der Raumbedarf der Anlage verringert. Zugleich werden durch die Verwendung eines einzigen Bausteines an Stelle der bisher üblichen mehreren Bausteine Stück- und Montagekosten eingespart. Bei einer Schaltanlage mit - üblicherweise - horizontal angeordneten Leistungsschaltern wird zugleich die Bauhöhe der Anlage reduziert und damit die Zugänglichkeit zu Teilen der Anlage erleichtert. Durch die kompakte Ausgestaltung des Verbindungsbausteines wird auch die Stellfläche der Anlage reduziert. Hierzu ist es vorteilhaft, wenn die Gehäuse der jeweils drei parallel nebeneinander angeordneten Leistungsschalter als einstückiges Blockgehäuse ausgebildet sind ( DE 8 907 711 U , DE 29806651.3 U ). - Für den Fall, dass als Leistungsschalter solche mit stirnseitig angeordneten Stromanschlüssen verwendet werden, können alle Komponenten der Anlage in einer gemeinsamen horizontalen Ebene angeordnet werden.Such an embodiment of the switchgear therefore provides for the transition from the three single-phase encapsulated circuit breakers to use the three single-phase encapsulated current-conducting connectors a single block in which the axes of all terminal areas lie in a common plane. This has the consequence that the current-conducting connecting pieces need not be arranged offset to a vertical or horizontal plane, whereby the space requirement of the system is reduced. At the same time, the use of a single component instead of the previously customary multiple components saves unit and assembly costs. In a switchgear with - usually - horizontally arranged circuit breakers at the same time reduces the height of the system and thus facilitates accessibility to parts of the system. Due to the compact design of the connection block and the footprint of the system is reduced. For this purpose, it is advantageous if the housings of the respective three circuit breakers arranged parallel to one another are formed as a one-piece block housing ( DE 8 907 711 U . DE 29806651.3 U ). - In the event that such circuit breakers are used with frontal power connections, all components of the system can be arranged in a common horizontal plane.

Wenn der neue Verbindungsbaustein dazu dient, drei Leistungsschalter mit dem einen Ende von stromleitenden Verbindungsstücken zu verbinden, dann kann er als flaches Gehäuse ausgebildet sein, das den Charakter eines 90°-Sektors einer kreisförmigen Scheibe aufweist, wobei in dem Gehäuse drei Phasenleiterabschnitte angeordnet sind, die viertelkreisringförmig gestaltet sind und konzentrisch zueinander verlaufen. Dabei ist das Gehäuse zweckmäßig so gestaltet, dass jeder Phasenleiterabschnitt für sich gekapselt und über wenigstens einen Stützisolator am Gehäuse abgestützt ist.If the new connector block is used to connect three power switches to one end of current-conducting connectors, then it may be formed as a flat housing having the character of a 90 ° sector of a circular disc, wherein in the housing three phase conductor sections are arranged, which are designed quarter-circle annular and concentric with each other. In this case, the housing is expediently designed so that each phase conductor section is encapsulated for itself and supported on the housing via at least one support insulator.

Wenn dagegen der neue Verbindungsbaustein zur Verbindung von mehr als zwei Baugruppen dienen soll, dann ist er in weiterer Ausgestaltung der Erfindung zweckmäßig als flaches quaderförmiges Gehäuse auszubilden und in diesem Gehäuse sich kreuzende Phasenleiterabschnitte anzuordnen; in diesem Fall sind die Phasenleiterabschnitte in einem gemeinsamen Kapselungsraum anzuordnen, wobei sie sich am Gehäuse isolierend abstützen. - Wenn man hierbei den Verbindungsbaustein als T-Baustein ausbildet, also das flache, quaderförmige Gehäuse an drei Seitenflächen mit Anschlussflanschen versieht, dann ordnet man im Kapselungsraum zweckmäßig drei von einer Seitenfläche zur gegenüberliegenden Seitenfläche verlaufende Phasenleiterabschnitte sowie drei von diesen Phasenleiterabschnitten zur dritten Seitenfläche abzweigende Phasenleiterabschnitte an.If, on the other hand, the new connection module is to serve for the connection of more than two modules, then in a further embodiment of the invention it is expedient to form a flat cuboid housing and to arrange intersecting phase conductor sections in this housing; In this case, the phase conductor sections are to be arranged in a common encapsulation space, wherein they are supported on the housing insulating. - If this case forms the connection block as T-block, so provides the flat, cuboid housing on three side surfaces with connecting flanges, then assigns in the encapsulation three expediently from one side surface to the opposite side surface extending phase conductor sections and three of these phase conductor sections to the third side surface branching phase conductor sections at.

Der neue Verbindungsbaustein kann aber auch als sogenannter Kreuzbaustein ausgebildet sein, bei dem das flache, quaderförmige Gehäuse an allen vier Seitenflächen mit Anschlussflanschen versehen ist; in diesem Fall ist in weiterer Ausgestaltung der Erfindung vorgesehen, dass im Kapselungsraum drei von einer Seitenfläche zur gegenüberliegenden Seitenfläche verlaufende Phasenleiterabschnitte sowie drei weitere, die erstgenannten Phasenleiterabschnitte kreuzende Phasenleiterabschnitte angeordnet sind, wobei jeweils ein erstgenannter und ein weiterer Phasenleiterabschnitt miteinander verbunden sind.The new connection module can also be designed as a so-called cross-block, in which the flat, cuboid housing is provided on all four side surfaces with connecting flanges; In this case, it is provided in a further embodiment of the invention that in the encapsulation three from one side surface to the opposite side surface extending phase conductor sections and three further, the first-mentioned phase conductor sections crossing phase conductor sections are arranged, in each case a first-mentioned and another phase conductor section are interconnected.

Das Gehäuse des neuen Verbindungsbausteines wird in weiterer Ausgestaltung zweckmäßig als Gussgehäuse hergestellt. Im Falle einer Ausgestaltung des Verbindungsbausteines als T- oder Kreuz-Baustein erhält man dadurch eine mechanische stabile Konstruktion, dass die inneren und die äußeren Konturen dieses Gussgehäuses im wesentlichen von drei parallel verlaufenden Zylindern bestimmt sind, die von drei senkrecht dazu, ebenfalls parallel verlaufenden Zylindern gekreuzt werden. Um bei einer solchen Ausgestaltung die mit der Isoliergasfüllung verbundenen Kräfte aufnehmen zu können, sind zweckmäßig die Boden- und die Deckfläche des flachen Gehäuses im Bereich der Zwickel der sich kreuzenden Zylinder stoffschlüssig miteinander verbunden.The housing of the new connection module is advantageously prepared in a further embodiment as a cast housing. In the case of an embodiment of the connecting block as a T or cross-block is obtained by a mechanical stable construction that the inner and outer contours of this cast housing are essentially determined by three parallel cylinders, of three perpendicular thereto, also parallel cylinders to be crossed. In order to be able to absorb the forces associated with the Isoliergasfüllung in such an embodiment, the bottom and the top surface of the flat housing in the region of the gusset of the intersecting cylinders are expediently joined together in a material fit.

Damit der neue Verbindungsbaustein möglichst flach ausgestaltet werden kann, empfiehlt es sich im Falle eines T- oder Kreuzbausteines weiterhin, dass die sich jeweils kreuzenden Phasenleiterabschnitte derart gekröpft sind, dass im jeweiligen Kreuzungsbereich der eine Phasenleiterabschnitt um den gleichen Betrag oberhalb der die Mittelachse der Anschlussflansche aufnehmenden Ebene verläuft wie der andere Phasenleiterabschnitt unterhalb dieser Mittelebene.So that the new connection module can be configured as flat as possible, it is also recommended in the case of a T or cross component that the intersecting phase conductor sections are cranked such that receive in the respective crossing region of a phase conductor section by the same amount above the central axis of the connecting flanges Level runs like the other phase conductor section below this center plane.

Die isolierende Abstützung der Phasenleiterabschnitte erfolgt in an sich bekannter Weise mit Stützisolatoren, die an Laschen an der Gehäusewand ( EP 0 540 131 B1 ) oder im Bereich von verschließbaren Öffnungen in der Gehäusewand ( DE 8 904 007 U , Brown Boverie Mitt. 4-73, S. 142) befestigt werden.The insulating support of the phase conductor sections is carried out in a conventional manner with post insulators, which on tabs on the housing wall ( EP 0 540 131 B1 ) or in the region of closable openings in the housing wall ( DE 8 904 007 U , Brown Boverie Mitt. 4-73, p. 142).

Zur Verbindung zweier Phasenleiterabschnitte innerhalb des Verbindungsbausteines können an sich bekannte Leiterverbindüngen in Form von Hohlkugeln ( DE 8 005 594 U ) verwendet werden.For connecting two phase conductor sections within the connection module, known conductor connections in the form of hollow spheres ( DE 8 005 594 U ) be used.

Zwei Ausführungsbeispiele einer gemäß der Erfindung ausgebildeten Hochspannungsschaltanlage sowie drei Ausführungsbeispiele für innerhalb einer solchen Anlage einsetzbare Verbindungsbausteine sind in den Figuren 1 bis 10 dargestellt. Dabei zeigt

  • Figur 1 eine Freiluftschaltanlage in sogenannter H-Schaltung, bei der am Übergang von den beiden Schenkeln des H auf die Querverbindung jeweils ein neuartiger Verbindungsbaustein angeordnet ist und bei der die einzelnen Leistungsschalter mit radial aus dem rohrförmigen Schaltergehäuse herausgeführten Stromanschlüssen versehen sind,
  • Figur 2 einen Teil einer Freiluftschaltanlage, bei der die Leistungsschalter mit stirnseitig angeordneten Stromzuführungen versehen sind,
  • die Figuren 3 und 4 im prinzipieller Darstellung einen Verbindungsbaustein mit zwei Anschlussbereichen,
  • die Figuren 5 und 6 in prinzipieller Darstellung die Ausgestaltung des Gehäuses eines Verbindungsbausteines als T- bzw. Kreuz-Baustein,
  • die Figuren 7 und 8 die äußere Gestaltung der beiden Bausteine gemäß der Figuren 5 und 6 und
  • Figur 9 die Anordnung von Phasenleiterabschnitten innerhalb eines Gehäuses gemäß den Figuren 6 und 8.
Two embodiments of a trained according to the invention high-voltage switchgear and three embodiments of usable within such a system connection blocks are in the FIGS. 1 to 10 shown. It shows
  • FIG. 1 an open-circuit switchgear in a so-called H-circuit, in which a novel connection module is arranged at the transition from the two legs of the H to the transverse connection and in which the individual circuit breakers are provided with electrical connections led out radially from the tubular switch housing,
  • FIG. 2 a part of an outdoor switchgear in which the circuit breakers are provided with power supply lines arranged on the front side,
  • the FIGS. 3 and 4 in the basic representation of a connection module with two connection areas,
  • the FIGS. 5 and 6 in a schematic representation of the design of the housing of a connection block as a T- or cross-block,
  • the FIGS. 7 and 8 the outer design of the two blocks according to the FIGS. 5 and 6 and
  • FIG. 9 the arrangement of phase conductor sections within a housing according to the FIGS. 6 and 8 ,

Figur 1 zeigt eine Freiluftschaltanlage, bei der in einer sogenannten H-Schaltung fünf Leistungsschalterbaugruppen 11, 12, 13, 14 und 15 angeordnet sind, wobei den Leistungsschalterbaugruppen 11 und 12 sowie 14 und 15 jeweils eine Freiluftanschluss-Baugruppe 16 bzw. 17 bzw. 18 bzw. 19 zum Anschluss von zwei Freileitungssystemen und zwei Transformatorstationen zugeordnet sind. Hierbei ist zwischen der jeweiligen Leistungsschalterbaugruppe und der zugehörigen Freiluftanschluss-Baugruppe eine Stromwandlerbaugruppe 20 angeordnet. Den Leistungsschalterbaugruppen sind weiterhin Winkeltrenner-Baugruppen 21 zugeordnet, mit denen die aus den liegend angeordneten Leistungsschaltern vertikal nach oben herausgeführten Stromanschlüsse in die Horizontale umgelenkt werden. FIG. 1 shows an open-circuit switchgear, in which in a so-called H-circuit five power switch assemblies 11, 12, 13, 14 and 15 are arranged, wherein the circuit breaker assemblies 11 and 12 and 14 and 15 each have an outdoor connection assembly 16 or 17 or 18 or 19 are assigned to the connection of two overhead lines and two transformer stations. Here is between the respective circuit breaker assembly and the associated outdoor connection module a power converter assembly 20 is arranged. The circuit breaker assemblies are further associated with angle splitter assemblies 21, with which the out of the horizontally arranged circuit breakers led out vertically upward power connections are deflected into the horizontal.

Zur Verbindung der Leistungsschalterbaugruppen untereinander sind Baugruppen 22 und 23 aus stromleitenden Verbindungsstücken in Form von einphasig gekapselten, gasisolierten Rohrleitern sowie zwei Verbindungsbausteine 2 und 3 vorgesehen. Diese Verbindungsbausteine dienen einerseits zur Verbindung von jeweils zwei Leistungsschalterbaugruppen 11 und 12 bzw. 14 und 15 sowie zur elektrischen Verbindung dieser Leistungsschalterbaugruppen mit den zu der Leistungsschalterbaugruppe 13 führenden stromleitenden Verbindungsstücken 22 und 23.To connect the circuit breaker assemblies with each other assemblies 22 and 23 of current-conducting connectors in the form of single-phase encapsulated, gas-insulated pipes and two connection modules 2 and 3 are provided. These connection blocks serve on the one hand to connect two power switch assemblies 11 and 12 or 14 and 15 and to electrically connect these power switch assemblies with the current-conducting connecting pieces 22 and 23 leading to the circuit breaker assembly 13.

Die Verbindungsbausteine 2 und 3 haben eine flache, quaderförmige Kontur und sind an drei Seitenflächen mit jeweils drei Anschlussflanschen versehen, wobei die Mittelachsen aller Anschlussflansche in einer gemeinsamen horizontalen Ebene liegen. Dies hat zur Folge, dass auch bei den Baugruppen, die mit dem jeweiligen Verbindungsbaustein miteinander verbunden werden, die Mittelachsen der entsprechenden Anschlussflansche in einer gemeinsamen horizontalen Ebene liegen.The connection modules 2 and 3 have a flat, cuboidal contour and are provided on three side surfaces, each with three connecting flanges, wherein the center axes of all connecting flanges lie in a common horizontal plane. This has the consequence that even with the modules that are connected to each other with the respective connection module, the central axes of the corresponding connection flanges lie in a common horizontal plane.

Figur 2 zeigt in horizontaler Ansicht eine Leistungsschalterbaugruppe 24, bei der die Stromanschlüsse aus dem jeweiligen Leistungsschalter horizontal, d. h. stirnseitig über Gehäusebausteine 25, bei denen es sich um Stromwandlerbausteine handeln kann, herausgeführt sind. Im linken Teil der Darstellung schließt sich an den Stromwandlerbaustein 25 ein Umlenkbaustein 26 an, der zugleich als Anschlussbaustein für eine Freiluftdurchführung 27 ausgestaltet ist. Am anderen Ende der Leistungsschalterbaugruppe sind je Leistungsschalter an den Gehäusebaustein 25 ein Trenner bzw. Trenner-Erder-Baustein 28 angeschlossen, an den anschließend ein Verbindungsbaustein 4 angeflanscht ist. Bei der erwähnten Ausgestaltung der Leistungsschalterbaugruppe 24 mit stirnseitigen Stromanschlüssen sind alle Baugruppen der Anlage in einer gemeinsamen horizontalen Ebene M angeordnet. - Der Verbindungsbaustein 4 ist gemäß dem später erläuterten Ausführungsbeispiel gemäß Figur 5 oder dem Ausführungsbeispiel gemäß Figur 6 ausgebildet. FIG. 2 shows a horizontal view of a circuit breaker assembly 24, in which the power connections from the respective circuit breaker horizontally, ie the front side via housing blocks 25, which may be current transformer modules, are led out. In the left part of the illustration, a deflection module 26 adjoins the current transformer module 25, which at the same time is designed as a connection component for an outdoor bushing 27. At the other end of the Circuit breaker module per circuit breaker to the housing block 25, a disconnector or isolator earth module 28 is connected to the then a connection module 4 is flanged. In the aforementioned embodiment of the circuit breaker assembly 24 with frontal power connections all modules of the system are arranged in a common horizontal plane M. - The connection module 4 is according to the later explained embodiment according to FIG. 5 or the embodiment according to FIG. 6 educated.

Figur 3 zeigt in Draufsicht sowie gemäß der Schnittlinie IV in Figur 4 im Querschnitt einen Verbindungsbaustein 9, der als flaches Gehäuse 91 ausgebildet ist, das den Charakter eines 90°-Sektors einer kreisförmigen Scheibe aufweist. Das Gehäuse 91 hat somit zwei unter einem Winkel von 90° zueinander angeordnete Seitenflächen, an denen erste Anschlussflansche 92 sowie zweite Anschlussflansche 94 angeordnet sind. Die Anschlussflansche sind dabei an den Enden von viertelkreisringförmigen Rohrbögen 98, 99 und 70 angeordnet, die als Kapselungsgehäuse für ebenfalls viertelkreisringförmig gestaltete Phasenleiterabschnitte 71, 72 und 73 dienen. Die Rohrbögen 98, 99 und 70 sind dabei über Stege 96 und 97 stoffschlüssig miteinander verbunden. FIG. 3 shows in plan view and according to the section line IV in FIG. 4 in cross-section a connecting block 9, which is formed as a flat housing 91, which has the character of a 90 ° sector of a circular disc. The housing 91 thus has two side surfaces arranged at an angle of 90 ° to one another, on which first connecting flanges 92 and second connecting flanges 94 are arranged. The connecting flanges are arranged at the ends of quarter-circle annular pipe bends 98, 99 and 70, which serve as encapsulating for likewise quarter-circular ring-shaped phase conductor sections 71, 72 and 73. The pipe bends 98, 99 and 70 are connected by webs 96 and 97 cohesively.

Die Phasenleiterabschnitte 71, 72 und 73 verlaufen konzentrisch zueinander und sind innerhalb der einzelnen Rohrbögen mit Hilfe von Stützisolatoren 74 am Gehäuse 91 abgestützt.The phase conductor sections 71, 72 and 73 are concentric with one another and are supported on the housing 91 within the individual pipe bends by means of support insulators 74.

Durch die erwähnte Ausgestaltung ist sichergestellt, dass die Mittelachsen 93 der Anschlussflansche 92 und die Mittelachsen 95 der Anschlussflansche 94 in einer gemeinsamen horizontalen Ebene H liegen.By the mentioned embodiment it is ensured that the center axes 93 of the connecting flanges 92 and the center axes 95 of the connecting flanges 94 lie in a common horizontal plane H.

Ein Verbindungsbaustein gemäß den Figuren 3 und 4 kann beispielsweise für eine Schaltanlage gemäß Figur 2 verwendet werden, wenn die Leistungsschaltereinheit an das eine Ende eines stromleitenden Verbindungsstückes anzuschließen ist, das aus drei horizontal nebeneinander angeordneten einphasig gekapselten Rohrleitern besteht.A connection module according to the FIGS. 3 and 4 For example, for a switchgear according to FIG. 2 be used when the circuit breaker unit is to be connected to the one end of a current-conducting connector, which consists of three horizontally juxtaposed single-phase encapsulated pipelines.

Figur 5 zeigt den bei einer Anlage gemäß Figur 1 verwendeten Verbindungsbaustein 2, der gleichartig wie der Verbindungsbaustein 3 ausgebildet ist. Der Verbindungsbaustein besteht aus einem flachen, quaderförmigen Gehäuse 60, in dem sich kreuzende Phasenleiterabschnitte 64, 65 und 66 sowie 67, 68 und 69 angeordnet sind. Das Innere des Gehäuses bildet einen für alle Phasenleiterabschnitte gemeinsamen Kapselungsraum. Das Gehäuse ist an drei Seitenflächen mit Anschlussflanschen 61, 62 und 63 versehen, wobei sich die Anschlussflansche 61 und 63 gegenüber liegen. Die Mittelachsen A, B und C sowie A',B' und C' aller Anschlussflansche liegen in einer gemeinsamen horizontalen Ebene. FIG. 5 shows that in a plant according to FIG. 1 used connection block 2, which is similar to the connection block 3 is formed. The connection module consists of a flat, cuboid housing 60, in which crossing phase conductor sections 64, 65 and 66 and 67, 68 and 69 are arranged. The interior of the housing forms a common for all phase conductor Kapselungsraum. The housing is provided on three side surfaces with connecting flanges 61, 62 and 63, wherein the connecting flanges 61 and 63 are opposite. The center axes A, B and C and A ', B' and C 'of all connection flanges lie in a common horizontal plane.

Wie sich aus der Darstellung in Figur 1 und der Darstellung in Figur 7 ergibt, ist die Gestalt des Gehäuses 60, d. h. sind die inneren und die äußeren Konturen dieses Gehäuses, bei dem es sich um ein Gussgehäuse handelt, im wesentlichen von drei parallel verlaufenden Zylindern bestimmt, die von drei senkrecht dazu, ebenfalls parallel verlaufenden Zylindern gekreuzt werden. Diese Zylinder verlaufen konzentrisch zu den Phasenleiterabschnitten. Bei dieser Gestaltung des Gehäuses ergeben sich Zwickelbereiche 53 der sich kreuzenden Zylinder. In diesen Zwickelbereichen ist die Deckfläche des Gehäuses 60 mit der Bodenfläche des Gehäuses stoffschlüssig verbunden.As can be seen from the illustration in FIG. 1 and the representation in FIG. 7 is the shape of the housing 60, that is, the inner and the outer contours of this housing, which is a cast housing, essentially three parallel cylinders determined, which are crossed by three perpendicular thereto, also parallel cylinders , These cylinders are concentric with the phase conductor sections. In this design of the housing, gusset areas 53 of the intersecting cylinders result. In these Zwickelbereichen the top surface of the housing 60 is integrally connected to the bottom surface of the housing.

Zur Verbindung des Phasenleiterabschnittes 64 mit dem Phasenleiterabschnitt 67 bzw. des Abschnittes 65 mit dem Abschnitt 68 sowie des Abschnittes 66 mit dem Abschnitt 69 ist jeweils ein Verbindungsbereich 50 bzw. 51 bzw. 52 vorgesehen.To connect the phase conductor section 64 with the phase conductor section 67 or the section 65 with the section 68 and the section 66 with the section 69, a connection region 50 or 51 or 52 is provided in each case.

Figur 6 zeigt einen Verbindungsbaustein 8, der im Prinzip wie der Verbindungsbaustein gemäß Figur 5 aufgebaut ist, dessen Gehäuse 80 jedoch zusätzlich zu den Anschlussflanschen 81, 82 und 83 auch an der vierten Seitenfläche mit Anschlussflanschen 84 versehen ist. Entsprechend erstrecken sich die querverlaufenden Phasenleiterabschnitte 85, 86 und 87 bis in den Bereich dieser Anschlussflansche. - Figur 8 zeigt schematisch die diesbezügliche äußere Kontur 89 des Verbindungsbausteines 8, wonach sich die querverlaufenden Zylinderbereiche bis in die Flanschbereiche 84 fortsetzen. FIG. 6 shows a connection module 8, which in principle as the connection module according to FIG. 5 is constructed, however, the housing 80 is also provided in addition to the connecting flanges 81, 82 and 83 on the fourth side surface with connecting flanges 84. Accordingly, the transverse phase conductor sections 85, 86 and 87 extend into the region of these connection flanges. - FIG. 8 schematically shows the relevant outer contour 89 of the connecting block 8, after which the transverse cylinder areas continue into the flange 84.

Figur 9 zeigt eine Schnittdarstellung längs der Linie IX-IX in Figur 6. Dadurch ist die Abstützung der Phasenleiterabschnitte mit Hilfe von Stützisolatoren 88 zu erkennen. Weiterhin ist zu erkennen, dass der Phasenleiterabschnitt 87 derart gekröpft ist und dass auch die Phasenleiterabschnitte 64 und 65 derart gekröpft sind, dass diese Phasenleiterabschnitte in den sich kreuzenden Bereichen einerseits oberhalb, andererseits unterhalb einer Mittelebene M verlaufen, wobei die vertikalen Abstände von der Mittelebene gleich groß gewählt sind. Die Mittelebene M ist dabei die gleiche Ebene, in der die Mittelachsen der Anschlussflansche 81 bis 84 liegen. FIG. 9 shows a sectional view taken along the line IX-IX in FIG. 6 , As a result, the support of the phase conductor sections by means of support insulators 88 can be seen. Furthermore, it can be seen that the phase conductor section 87 is bent in such a way and that the phase conductor sections 64 and 65 are cranked such that these phase conductor sections in the intersecting areas on the one hand above, on the other hand below a median plane M, wherein the vertical distances from the center plane equal are chosen large. The median plane M is the same plane in which the center axes of the connecting flanges 81 to 84 lie.

Claims (9)

  1. Three-phase high-voltage switchgear assembly having single-phase-encapsulated assemblies such as circuit breakers (11, 12, 13, 14, 15) and current-carrying connecting pieces (22),
    in which three circuit breakers (11) are arranged parallel alongside one another and are connected via encapsulated phase conductor sections to current-carrying connecting pieces (22) which run transversely with respect to the circuit breakers, and in which both the circuit breakers (11) and the current-carrying connecting pieces (22) are provided at each of the connecting points with a connecting flange which has a centre axis, and the centre axes of the connecting flanges which are provided at the connecting points of the circuit breakers lie on a common plane, characterized in that an integral connecting module (2) is arranged for holding the phase conductor sections (64, 65, 66, 67, 68, 69),
    which integral connecting module (2) is provided with at least two connecting areas each having three connecting flanges (61, 62, 63) which are arranged alongside one another and each have a centre axis,
    with both the centre axes, (A, B, C, A', B', C') of the connecting flanges of the connecting module (2) and the centre axes of the connecting flanges of the current-carrying connecting pieces (22) lying on the same plane (M) as the centre axes of the connecting flanges of the circuit breakers (11).
  2. High-voltage installation according to Claim 1, characterized in that the connecting module (9) is in the form of a flat housing (91) which has the character of a 90° sector of a circular disc,
    with three phase conductor sections (71, 72, 73) being arranged in the housing, being in the form of quarter circular rings and running concentrically with respect to one another (figures 3 and 4) .
  3. High-voltage installation according to Claim 2, characterized in that each phase conductor section (71, 72, 73) is encapsulated in its own right and is supported on the housing (91) via at least one supporting insulator (74).
  4. High-voltage installation according to Claim 1, characterized in that, in order to connect more than two assemblies (11, 12, 22), the connecting module is in the form of a flat, cuboid housing (6),
    and in that mutually crossing phase conductor sections (64, 65, 66, 67, 68, 69) are arranged in the housing,
    with the phase conductor sections being arranged in a common encapsulation area and being supported in an insulating manner (88) on the housing.
  5. High-voltage installation according to Claim 4, characterized in that the flat, cuboid housing (6) is provided with connecting flanges (61, 62, 63) on three side surfaces, and in that three phase conductor sections (64, 65, 66), which run from one side surface to the opposite side surface, as well as three phase conductor sections (67, 68, 69), which branch off from these phase conductor sections to the third side surface, are arranged in the encapsulation area.
  6. High-voltage installation according to Claim 4, characterized in that the flat cuboid housing (80) is provided with connecting flanges (81, 82, 83, 84) on all four side surfaces,
    and in that three phase conductor sections (64, 65, 66), which run from one side surface to the opposite side surface, as well as three further phase conductor sections (85, 86, 87), which cross the first-mentioned phase conductor sections, are arranged in the encapsulation area
    with a first-mentioned and a further phase conductor section in each case being connected to one another.
  7. High-voltage installation according to one of Claims 4 to 6, characterized in that the housing (60, 80) is a cast housing, with the inner and the outer contours of this cast housing being defined essentially by three parallel-running cylinders, which are crossed by three cylinders which run at right angles thereto, likewise parallel.
  8. High-voltage installation according to Claim 7, characterized in that the bottom surface and the top surface of the flat housing (60, 80) are connected to one another integrally in the area of the gap (53) between the crossing cylinders.
  9. High-voltage installation according to one of Claims 4 to 8, characterized in that the respective mutually crossing phase conductor sections (64, 65, 87) are bent such that, in the respective crossing area, the one phase conductor section (87) runs by the same amount above the plane (M) which accommodates the centre axes of the connecting flanges as the other phase conductor section (64, 65) runs below this centre plane.
EP01915016A 2000-03-07 2001-02-13 Three-phase high voltage switchgear with single-phase-encapsulated modules Expired - Lifetime EP1262005B1 (en)

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DE10011888 2000-03-07
DE2000111888 DE10011888C2 (en) 2000-03-07 2000-03-07 Three-phase high-voltage switchgear with single-phase encapsulated modules
PCT/DE2001/000608 WO2001067573A1 (en) 2000-03-07 2001-02-13 Three-phase high voltage switchgear with single-phase-encapsulated modules

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DE10011888A1 (en) 2001-10-18
WO2001067573A1 (en) 2001-09-13
CN1397102A (en) 2003-02-12
CN1214502C (en) 2005-08-10
EP1262005A1 (en) 2002-12-04

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